Regional analgesia and surgical site infections after colorectal surgery: a retrospective cohort analysis

Abstract Background The effect of regional analgesia on perioperative infectious complications remains unknown. We therefore tested the hypothesis that a composite of serious infections after colorectal surgery is less common in patients with regional analgesia than in those given Intravenous Patient-Controlled Analgesia (IV-PCA) with opiates. Methods Patients undergoing elective colorectal surgery lasting one hour or more under general anesthesia at the Cleveland Clinic Main Campus between 2009 and 2015 were included in this retrospective analysis. Exposures were defined as regional postoperative analgesia with epidurals or Transversus Abdominis Plane blocks (TAP); or IV-PCA with opiates only. The outcome was defined as a composite of in-hospital serious infections, including intraabdominal abscess, pelvic abscess, deep or organ-space Surgical Site Infection (SSI), clostridium difficile, pneumonia, or sepsis. Logistic regression model adjusted for the imbalanced potential confounding factors among the subset of matched surgeries was used to report the odds ratios along with 95% confidence limits. The significance criterion was p < 0.05. Results A total of 7811 patients met inclusion and exclusion criteria of which we successfully matched 681 regional anesthesia patients to 2862 IV-PCA only patients based on propensity scores derived from potential confounding factors. There were 82 (12%) in-hospital postoperative serious infections in the regional analgesia group vs. 285 (10%) in IV-PCA patients. Regional analgesia was not significantly associated with serious infection (odds ratio: 1.14; 95% Confidence Interval 0.87‒1.49; p-value = 0.339) after adjusting for surgical duration and volume of intraoperative crystalloids. Conclusion Regional analgesia should not be selected as postoperative analgesic technique to reduce infections.

Assessment of main complications of regional anesthesia recorded in an acute pain unit in a tertiary care university hospital: a retrospective cohort

Abstract Background Regional anesthesia has been increasingly used. Despite its low number of complications, they are associated with relevant morbidity. This study aims to evaluate the incidence of complications after neuraxial block and peripheral nerve block. Methods A retrospective cohort study was conducted, and data related to patients submitted to neuraxial block and peripheral nerve block at a tertiary university hospital from January 1, 2011 to December 31, 2017 were analyzed. Results From 10,838 patients referred to Acute Pain Unit, 1093(10.1%) had side effects or complications: 1039 (11.4%) submitted to neuraxial block and 54 (5.2%) to peripheral nerve block. The most common side effects after neuraxial block were sensory (48.5%) or motor deficits (11.8%), nausea or vomiting (17.5%) and pruritus (8.0%); The most common complications: 3 (0.03%) subcutaneous cell tissue hematoma, 3 (0.03%) epidural abscesses and 1 (0.01%) arachnoiditis. 204 of these patients presented sensory or motor deficits at hospital discharge and needed follow-up. Permanent peripheral nerve injury after neuraxial block had an incidence of 7.7:10,000 (0.08%). The most common side effects after peripheral nerve block were sensory deficits (52%) and 21 patients maintained follow-up due to symptoms persistence after hospital discharge. Conclusion Although we found similar incidences of side effects or even lower than those described, major complications after neuraxial block had a higher incidence, particularly epidural abscesses. Despite this, other serious complications, such as spinal hematoma and permanent peripheral nerve injury, are still rare.

Principais causas ginecológicas de dor pélvica aguda em mulheres / Main gynecological causes of acute pelvic pain in women

Este trabalho buscou reunir dados essenciais sobre as etiologias de dor pélvica aguda, uma queixa constante nos serviços de emergências e ambulatórios de ginecologia, responsável por grande desconforto e impacto na qualidade de vida de pacientes mulheres. É uma condição laboriosa por causa de seu amplo espectro de causas, devendo ser abordada com cuidado e atenção pelo profissional médico, o qual deve considerar os diversos diagnósticos diferenciais, sendo a ultrassonografia o exame de maior importância para auxiliar em seu diagnóstico. As principais etiologias não obstétricas podem ser não ginecológicas e ginecológicas; essas últimas são divididas em anexiais e uterinas. Entre as causas ginecológicas, devem- -se investigar cistos ovarianos, torções anexiais, leiomiomas, doença inflamatória pélvica, abscesso tubo-ovariano, dismenorreia e complicações de dispositivos intrauterinos. A maioria das causas tem tratamento eficaz, com retorno da função do órgão e melhora da qualidade de vida, sem complicações, especialmente se diagnosticada precocemente.(AU)

The aim of this study was to gather important data on acute pelvic pain etiologies, a usual complaint in the emergency services and gynecology outpatient clinics, responsible for great discomfort and impact on quality of life in female patients. It is a laborious condition due to its wide spectrum of causes, which needs to be approached with attention by the physician, who must consider all the possible diagnoses, being the ultrasonography the most important exam to detect it. The main non-obstetric etiologies can be non-gynecological and gynecological, which are separated in adnexal and uterine causes. Among the gynecological causes, ovarian cysts, adnexal torsions, leiomyomas, pelvic inflammatory disease, ovarian tube abscess, dysmenorrhea and complications of intrauterine devices should be investigated. Most causes can be effectively treated, with return of organ function and improved quality of life, without complications, especially if diagnosed early.(AU)

Fournier's gangrene by perianal abscess / Gangrena de Fournier por abscesso perianal

ABSTRACT Objective: To describe and analyze the cases of Fournier's Gangrene caused by perianal abscess treated in a tertiary hospital in western Paraná, correlating possible factors that influence mortality, with emphasis on late diagnosis and therapy. Methods: A retrospective and descriptive case series was carried out based on the analysis of medical records of patients with Fournier's Gangrene due to perianal abscess from January 2012 to December 2017. Results: Thirty-one patients with Fournier's Gangrene due to perianal abscess were treated in the period: 26 men and 5 women. Mean age was 53.51 ± 14.5 years. The most prevalent comorbidity in this group was type 2 diabetes mellitus, showing a strong correlation with mortality. The mean time from disease progression, from the initial symptom to the admission at the service, was 9.6 ± 6.81 days. All patients were submitted to antibiotic therapy and surgical treatment, with a mean of 3.25 ± 2.89 procedures/patient. Seven (22.58%) patients died and all of them showed signs of sepsis on admission; only 2 patients with sepsis did not die. Conclusion: The presence of sepsis on admission and type 2 diabetes mellitus were strongly correlated with mortality.

RESUMO Objetivo: Descrever e analisar os casos de gangrena de Fournier por abscesso perianal atendidos em hospital terciário do oeste do Paraná, correlacionando possíveis fatores que influenciem a mortalidade, com ênfase ao diagnóstico e terapêuticas tardias. Métodos: Realizou-se um estudo de série de casos, retrospectivo e descritivo baseado na análise de prontuários de pacientes portadores de gangrena de Fournier devido a abscesso perianal no período de Janeiro de 2012 à Dezembro de 2017. Resultados: Foram tratados 31 pacientes com gangrena de Fournier por abscesso perianal no período, sendo 26 homens e 5 mulheres. A média de idade foi de 53,51 ± 14,5 anos. A comorbidade de maior prevalência neste grupo foi diabete melitus tipo 2, demonstrando forte correlação com mortalidade. A média do tempo de evolução da doença, do sintoma inicial até entrada no serviço, foi de 9,6 ± 6,81 dias. Todos os pacientes foram submetidos à antibioticoterapia e tratamento cirúrgico com média de 3,25 ± 2,89 procedimentos/paciente. Sete (22,58%) pacientes evoluíram para óbito e todos estes apresentavam sinais de sepse na admissão; apenas 2 pacientes com sepse não evoluíram a óbito. Conclusão: Presença de sepse a admissão e diabete melitus tipo 2 foram fortemente correlacionadas com mortalidade.

Epidemiology and outcomes of anal abscess in patients on chronic dialysis: a 14-year retrospective study

OBJECTIVES: We conducted this retrospective study to elucidate the clinical presentation and outcomes of anal abscess in chronic dialysis patients. METHODS: We performed a chart review of patients who were hospitalized for anal abscess from Jan. 2002 to Dec. 2015. A total of 3,074 episodes of anal abscess were identified. Of these, 43 chronic dialysis patients with first-time anal abscess were enrolled. Patients were divided into a surgical group and a nonsurgical group according to the treatment received during hospitalization. The baseline characteristics, clinical findings, treatments and outcomes were obtained and analyzed. The endpoints of this study were in-hospital mortality, one-year mortality and one-year recurrence. RESULTS: Of the 43 patients, 27 (62.7%) received surgical treatment, and 16 (37.2%) received antibiotic treatment alone. There was no significant difference in age, sex, body mass index, smoking habits, comorbidities, or dialysis characteristics between the two groups. Perianal abscess was the most common type of anal abscess, and 39.5% of patients experienced fistula formation. Most patients had mixed aerobic and anaerobic flora. Our data demonstrate that there was no significant difference in hospital stay, one-year survival or recurrence rate between the surgical group and nonsurgical group. However, there was a trend toward better in-hospital survival in patients who received surgical treatment (p=0.082). CONCLUSION: In chronic dialysis patients with anal abscess, there was no statistically significant difference in clinical presentation and outcomes between the surgical and nonsurgical groups, although the surgical group had a trend of better in-hospital survival.

Absceso subpectoral como diagnóstico diferencial de hombro doloroso: reporte de un caso / Subpectoral abscess as a differential diagnosis of painful shoulder: a case report

Los síndromes dolorosos del hombro son relativamente comunes en la práctica clínica. Habitualmente son causados por un número limitado de patologías. Dentro de los diagnósticos diferenciales, el pinzamiento subacromial, las lesiones aisladas del manguito rotador, capsulitis adhesiva, tendinitis cálcica, patología degenerativa de las articulaciones glenohumeral y acromioclavicular, y la inestabilidad crónica del hombro, son causas comunes. Causas infrecuentes son la rotura del tendón del bíceps, neuralgias, patología infecciosa articular y tumores del hombro. Un absceso subpectoral sin sintomatología infecciosa clara es una causa extremadamente rara de hombro doloroso en el adulto. Presentamos el caso de un paciente de 60 años, que inicia con un cuadro de hombro doloroso cuya causa se identifica como un absceso subpectoral por staphylococcus aureus que se maneja con drenaje quirúrgico y tratamiento antibiótico endovenoso con buenos resultados.

Painful shoulder syndromes are commonly caused by a limited assortment of pathologies. Differential diagnosis include rotator cuff impingement syndrome, rotator cuff tears, adhesive capsulitis, calcific tendonitis, degenerative disease of the joint including acromio-clavicular and gleno-humeral joints and chronic instability. Less common causes are labral tears, biceps tendon rupture, soft tissue infection, neurologic disease, joint infection and shoulder tumors. A subpectoral abscess without infectious clinical features is a very rare cause of shoulder pain in adults. We present the case of a 52 years old male who develops a painful shoulder syndrome caused by a staphylococcus aureus subpectoral abscess, treated by surgical drainage and intravenous antibiotic therapy with good results.

Coinfección por Mycobacterium fortuitum y Mycobacterium tuberculosis en abscesos esplénicos en un paciente con VIH / Co-infection by Mycobacterium fortuitum and Mycobacterium tuberculosis in splenic abscesses in a patient with HIV

RESUMEN Los pacientes con VIH son susceptibles a la infección por micobacterias. En el caso de las micobacterias de crecimiento rápido, grupo al que pertenece el Mycobacterium fortuitum (M. fortuitum), se han descrito infecciones en la piel, pulmones, ganglios linfáticos y enfermedad diseminada. Presentamos el caso de un paciente varón de 43 años, con diagnóstico previo de VIH en tratamiento antirretroviral, que acude por fiebre, astenia, pérdida de peso y diarrea crónica. Se realiza tomografía abdominal y se evidencia hepatoesplenomegalia con lesiones nodulares en el bazo. El cultivo esplénico, finalmente, fue positivo para M. fortuitum, con PCR positivo a Mycobacterium tuberculosis. Los protocolos actuales de tratamiento para este tipo de infecciones se basan en la susceptibilidad mostrada en los cultivos realizados. En lo que respecta a coinfecciones entre M. fortuitum y Mycobacterium tuberculosis, en pacientes VIH positivos, la información es aun menor.

ABSTRACT Patients with HIV are susceptible to mycobacterium infection. In the case of fast-growing mycobacteria, the group to which Mycobacterium fortuitum (M. fortuitum) belongs, infections have been described in the skin, lungs, lymph nodes and disseminated disease. We present the case of a 43-year-old male patient with pre-diagnosis of HIV in antiretroviral therapy, which comes as a fever, asthenia, weight loss and chronic diarrhea. Abdominal tomography is performed and hepatosplenomegaly is evidenced with nodular lesions in the spleen. The splenic culture was finally positive for M. Fortuitum, with positive PCR to Mycobacterium tuberculosis. The current treatment protocols for this type of infection are based on the susceptibility shown in the cultures performed. With regard to coinfections between M. Fortuitum and Mycobacterium tuberculosis, in HIV positive patients, there are even less information.

Absceso gingival después de aumento de reborde alveolar con técnica en rollo modificada. Reporte de caso / Gum Abscess after an Alveolar Ridge Augmentation with the Modified Roll Technique. A Case Report

Antecedentes: La técnica en rollo modificado se ha utilizado ampliamente para mejorar el aspecto estético de las deficiencias de los rebordes alveolares durante el tratamiento de rehabilitación y, así, disminuir el dolor posoperatorio. Objetivo: Describir un caso clínico en el que se realizó un aumento del reborde alveolar por medio de una técnica en rollo modificada que presentó un absceso durante las primeras semanas posoperatorias. Se describe también manejo clínico del caso. Resultados: Después del diagnóstico clínico y microbiológico, se realizó tratamiento antibiótico. En el control a los cuatro meses se observó resolución completa del absceso.

Background: The modified roll technique has been widely used to improve the aesthetics of the alveolar ridge deficiencies during the rehabilitation treatment and, in turn, to reduce the postoperative pain. Objective: To describe a clinical case of an alveolar ridge augmentation with the modified roll technique in which an abscess appeared during the first postoperative weeks. The clinical management of the case is also detailed herein. Results: After a clinical and microbiological diagnosis, the patient was indicated an antibiotic treatment. In the postoperative four-month checkup, a full solution of the abscess was observed.

Incidence of fistula after management of perianal abscess / Incidência de fistulas em seguida ao tratamento de abscesso perianal

Background: Perianal fistula is among the most common anorectal diseases encountered in adults, men are more prone to be affected than women. There is a close relationship of abscess and fistula in etiology, anatomy, pathophysiology, therapy, complications and morbidity, it is appropriate to consider them as one entity. Aim of study: To determine the incidence of fistula formation and recurrent abscess in a sample of Iraqi patients in Baghdad and decide whether primary fistulotomy should be performed at the time of incision and drainage of perianal abscesses. Patients and methods: A retrospective study of 68 patients with perianal abscess operations conducted in Baghdad. They underwent incision and drainage under either local or general anesthesia at Al-Kindy Teaching Hospitals and private hospitals over a 15-year period from January 2000 to December 2015. Their ages ranged from 20 to 68 years (40.21 ± 1.34) males (63/68) (92.64%) were more than females (5/68) (7.35%). Patients were treated with incision over the abscess under anesthesia and drainage of the abscess was done. The patients were followed up for an average 18 months (range 12-24 months) after abscess drainage or until a fistula appeared and abscess recurrence. Results: The study group comprised of 68 (92.64%) patients with perianal abscess with a median age 39 years (range 20-68 years). The mean follow-up period was identified to be 18 months (range 12-24 months). Males (63/68) (92.64%) were more than females (5/68) (7.35%). The incidence of fistula formation after follow up, the patients with perianal abscess after incision and drainage was 31/68 (45.58%) and males (30/31) (44.11%) were more than females (1/31) (1.47%). The most common site was posterior then left lateral position. The percentage of patients with recurrent abscess n = 6 (8.82%)were lower than fistula formation n = 31 (45.58%). The percentage of males n = 4/6 (5.88%) were more than females 2/6 (2.94%). Conclusions: The incidence of anal fistula in a sample of Iraqi patients with perianal abscess was 45.58% and percentage of recurrence of perianal abscess was 8.82%. To avoid division of anal sphincter muscle, secondary fistulotomy is advised to be done later when anal fistula will be formed.

Experiência: A fistula perianal está entre as mais comuns doenças anorretais observadas em adultos; os homens demonstram maior tendência para serem afetados, em comparação com as mulheres. Existe íntima relação entre abscessos e fistulas em termos e etiologia, anatomia, fisiopatologia, tratamento, complicações e morbidade; assim, é cabível considerá-los como uma mesma entidade. Objetivo do estudo: Determinar a incidência de formação de fístulas e de abscesso recorrente em uma amostra de pacientes iraquianos em Bagdá, e decidir se a fistulotomia primária deve ser realizada por ocasião da incisão e drenagem de abscessos perianais. Pacientes e métodos: Estudo retrospectivo de 68 pacientes com operações para abscesso perianal realizadas em Bagdá. Foi realizada incisão e drenagem sob anestesia local ou geral no Hospital-Escola Al-Kindy e em hospitais privados ao longo de um período de 15 anos, de janeiro de 2000 até dezembro de 2015. As idades variavam de 20 a 68 (40,21 ± 1,34) anos. Havia maior número de homens (63/68) (92,64%) do que de mulheres (5/68)(7,35%). Os pacientes tiveram o abscesso tratado sob anestesia, e foi realizada a drenagem do abscesso. Os pacientes foram monitorados, em média, durante 18 meses (variação, 12-24 meses) após a drenagem do abscesso, ou até o surgimento de uma fístula e recorrência do abscesso. Resultados: O grupo de estudo compreendeu 68 (92,64%) pacientes com abscesso perianal, com idade mediana de 39 anos (variação, 20-68 anos). O período médio de seguimento foi de 18 meses (variação, 12-24 meses). Havia maior número de homens (63/68) (92,64%) versus mulheres (5/68) (7,35%). No seguimento, a incidência de formação de fístula nos pacientes com abscesso perianal após a incisão e drenagem foi de 31/68 (45,58%), e os homens foram mais afetados (30/31) (44,11%) versus mulheres (1/31) (1,47%). O local mais comum foi a posição posterior e, em seguida, a lateral esquerda. O percentual de pacientes com abscesso recorrente (6, 8,82%) foi mais baixo do que o percentual para pacientes com formação de fístula (31, 45,58%). O percentual de homens (4/6, 5,88%) foi maior versus mulheres (2/6, 2,94%). Conclusões: A incidência de fístula anal em uma amostra de pacientes iraquianos com abscesso perianal foi de 45,58% e o percentual de recorrência de abscesso perianal foi de 8,82%. Para evitar a divisão do músculo esfinctérico anal, é aconselhável fazer uma fistulotomia secundária mais tarde, quando a fístula anal já estiver formada.

Piomiosite no lúpus eritematoso sistêmico juvenil / Pyomyositis in childhood-systemic lupus erythematosus

Resumo A piomiosite é uma infecção piogênica da musculatura esquelética, decorrente da disseminação hematogênica e geralmente acompanhada de formação de abscesso localizado. Esta infecção da musculatura é raramente descrita em adultos com lúpus eritematoso sistêmico (LES) e, até onde se sabe, ainda não o foi em pacientes com LES juvenil (LESJ). De nossos 289 pacientes com LESJ, uma apresentou piomiosite. Diagnosticada com LESJ aos 10 anos de idade e após seis anos de tratamento com prednisona, azatioprina e hidroxicloroquina, a paciente foi hospitalizada em razão de um histórico de 30 dias de dor insidiosa na coxa esquerda, sem relato algum de trauma aparente ou febre. O exame físico mostrou músculos sensíveis e com endurecimento lenhoso. Os exames laboratoriais revelaram anemia, aumento de reagentes de fase aguda e enzimas musculares normais. A tomografia computadorizada da coxa esquerda mostrou coleção no terço médio do vasto intermédio, sugerindo estágio purulento de piomiosite. Iniciou-se tratamento com antibiótico de largo espectro, que levou à resolução clínica completa. Em suma, descreveu-se o primeiro caso de piomiosite em pacientes com LESJ encontrado neste serviço. Este relato reforça que a presença de dor muscular localizada em pacientes imunocomprometidos, ainda que sem aumento de enzimas musculares, deve sugerir o diagnóstico de piomiosite. Recomenda-se tratamento imediato com antibióticos.

Abstract Pyomyositis is a pyogenic infection of skeletal muscle that arises from hematogenous spread and usually presents with localized abscess. This muscle infection has been rarely reported in adult-onset systemic lupus erythematous and, to the best of our knowledge, has not been diagnosed in pediatric lupus population. Among our childhood-onset systemic lupus erythematous population, including 289 patients, one presented pyomyositis. This patient was diagnosed with childhood-onset systemic lupus erythematous at the age of 10 years-old. After six years, while being treated with prednisone, azathioprine and hydroxychloroquine, she was hospitalized due to a 30-day history of insidious pain in the left thigh and no apparent trauma or fever were reported. Her physical examination showed muscle tenderness and woody induration. Laboratory tests revealed anemia, increased acute phase reactants and normal muscle enzymes. Computer tomography of the left thigh showed collection on the middle third of the vastus intermedius, suggesting purulent stage of pyomyositis. Treatment with broad-spectrum antibiotic was initiated, leading to a complete clinical resolution. In conclusion, we described the first case of pyomyositis during childhood in pediatric lupus population. This report reinforces that the presence of localized muscle pain in immunocompromised patients, even without elevation of muscle enzymes, should raise the suspicion of pyomyositis. A prompt antibiotic therapy is strongly recommended.

Absceso mediastínico con extensión espontánea a través de la pared torácica / Mediastinal abscess with spontaneous across chest wall extension

Introduction: Mediastinal abscess (MA) is a rare disease in the adult population. Generally presents as a systemic inflammatory response syndrome (SIRS) with high morbidity and mortality. The prognosis improves with an early diagnosis associated with an aggressive surgical drainage. Clinical case: We report a clinical case with a MA with an unusual spontaneous extension across the chest wall.

Introducción: Los abscesos mediastínicos (AM) son una patología poco frecuente en la población adulta. Su presentación clínica más habitual es la de un síndrome de respuesta inflamatoria sistémica (SIRS) con una elevada morbimortalidad. Su pronóstico mejora con un diagnóstico temprano asociado a un drenaje quirúrgico agresivo y precoz. Caso clínico: Presentamos un caso clínico de un AM con una inusual extensión espontánea a través de la pared torácica.

Hepatoduodenal fistula formation following transcatheter arterial chemoembolization and radiotherapy for hepatocellular carcinoma: treatment with endoscopic Histoacryl injection

A 71-year-old male patient was readmitted to our hospital 1 month after discharge because of relapse of abdominal pain. He had been diagnosed with hepatocellular carcinoma (HCC) 1 year prior and had undergone repeated transcatheter arterial chemoembolization and radiotherapy. During the last hospitalization, he was diagnosed with a liver abscess complicated by previous treatments for HCC and was treated with intravenous antibiotics and abscess aspiration. Follow-up abdominal computed tomography revealed a liver abscess with a duodenal fistula, which was successfully treated with endoscopic Histoacryl injection into the fistula. Liver abscesses with duodenal fistulas rarely occur, but they are intractable and possibly fatal in patients with HCC. In the literature, they have frequently been managed only with abscess treatment without fistula management. We herein report the first case of a patient with a liver abscess complicated by a fistula between the duodenum and the abscess, which was treated with endoscopic Histoacryl injection.

Diabetic ketoacidosis as a presenting symptom of complicated pancreatic cancer

No abstract available.

Deep lobe parotid abscess with facial nerve palsy: a case report / Absceso del lóbulo profundo de la parótida con parálisis del nervio facial: un reporte de caso

Acute suppurative sialadenitis mostly occurs in the parotid gland, while parotid abscesses principally arise in the superficial lobe. However, facial nerve palsy, secondary to parotid abscess, is rare. Predisposing factors for the ductally ascending infection are dehydration, xerogenic drugs and salivary gland diseases associated with ductal obstruction or reduced saliva secretion. Obstruction of Stensen's duct and diminished production of saliva are regarded as the promoting factors. Painful swelling of the preauricular region and cheek is the most familiar symptom of acute suppurative parotitis. The most common pathogens associated with acute bacterial infection are Staphylococcus aureus and anaerobes. We report a rare case of deep lobe parotid abscess with facial nerve palsy. Aside from adequate fluid hydration, good oral hygiene and treatment with empiric parenteral antibiotics, surgical treatment with drainage can provide a remedy for this disease.

La sialoadenitis aguda supurativa aguda ocurre sobre todo en la glándula parótida, mientras que los abscesos parotídeos se producen principalmente en el lóbulo superficial. Sin embargo, la parálisis del nervio facial, secundaria al absceso parotídeo, es rara. Los factores predisponentes para la infección ascendente ductal son la deshidratación, los medicamentos xerogénicos, y las enfermedades de las glándulas salivales asociadas con obstrucción ductal o reducción de la secreción salival. La obstrucción del conducto de Stensen y la disminución de la producción de saliva, se consideran los factores promotores. Una inflamación dolorosa de la región preauricular y la mejilla es el síntoma más conocido de la parotiditis supurativa aguda. Los patógenos más comunes asociados con la infección bacteriana aguda son los anaerobios y el estafilococo dorado. Reportamos un caso raro de absceso del lóbulo parotídeo profundo con parálisis del nervio facial. Además de una hidratación fluida, una buena higiene oral y tratamiento con antibióticos parenterales empíricos, el tratamiento quirúrgico con drenaje puede proveer un remedio para esta enfermedad.

Lemierre syndrome from a neck abscess due to methicillin-resistant Staphylococcus aureus

Lemierre syndrome is characterized by acute septic thrombophlebitis of the internal jugular vein (IJV) that develops after an oropharyngeal infection, and can be complicated by septic emboli to lungs and other organs. The most frequent causative agent is Fusobacterium necrophorum, an anaerobic bacillus found in normal oropharyngeal flora. Staphylococcus aureus has emerged as a cause of Lemierre syndrome in the last decade. We report a case of a 24-year-old man who developed septic IJV thrombosis and necrotizing pneumonia due to S. aureus from an infected hematoma in the right sternocleidomastoid muscle. Antibiotics are the mainstay of therapy with few cases needing anticoagulation. A good outcome is dependent upon an awareness of the condition, a high index of suspicion, and prompt initiation of antibiotic therapy. Recognition of S. aureus as a cause of Lemierre syndrome can guide the choice of initial antibiotics to cover this virulent pathogen.

Thoracic aortic aneurysm in a buck associated with caseous lymphadenitis / Aneurisma de aorta torácica associado à linfadenite caseosa em caprino reprodutor

This paper reports the clinical, bacteriological and pathological findings of a thoracic aortic aneurysm in a four-year-old Anglo-Nubian goat buck, related to a framework of visceral caseous lymphadenitis. General clinical examination showed heart rate of 75 beats per minute, respiratory rate of 20 movements per minute and ruminal movements of four movements per minute. Superficial lymph nodes were normal upon palpation. Rectal temperature was slightly high (40.5°C). Blood test showed an intense leukocytosis (54,000/µL), characterized by strong neutrophil shift to the left. At necropsy, a large blood clot was detected in the thoracic cavity. The thickening of the myocardium and dilatation of the aorta in the thoracic portion, presenting a saculiform format was also observed. A large number of abscesses were disseminated in the media and intima layers of aorta. The aorta lumen obstruction by arterial plaques consisting of inflammatory infiltrate, predominantly neutrophilic was also detected. Abscesses were found spread in turbinate, rumen, reticulum, kidneys, liver, spleen, testicles and aorta wall. The microbiological exam of exudate confirmed Corynebacterium pseudotuberculosis as the causal agent.

Este trabalho descreve os achados clínicos, bacteriológicos e patológicos de um aneurisma da aorta torácica em um reprodutor caprino da raça Anglo-Nubiana, de quatro anos de idade, relacionado a um caso de linfadenite caseosa visceral. Ao exame clínico geral observaram-se: frequência cardíaca de 75 batimentos por minuto, frequência respiratória de 20 movimentos por minuto e movimentos ruminais de quatro movimentos por minuto. Os linfonodos superficiais encontravam-se normais à palpação. A temperatura retal estava ligeiramente aumentada (40,5°C). No hemograma completo, observou-se leucocitose intensa, 54.000/µL, caracterizada por um forte desvio neutrofílico à direita. Nos achados de necropsia, observou-se, na cavidade torácica, presença de um grande coágulo de sangue. No coração, foi identificado espessamento do miocárdio. Uma dilatação na porção torácica da artéria aorta foi detectada, apresentando um aspecto saculiforme. Um grande número de abscessos estava presente nas camadas média e íntima da aorta. Observou-se, também, obstrução do lúmen da aorta por placas de infiltrado inflamatório, predominantemente neutrofílico. A disseminação de abscessos nos cornetos, rúmen, retículo, fígado, baço, rins, testículos e parede da aorta foi detectada. O exame microbiológico do exsudato confirmou o Corynebacterium pseudotuberculosis como o agente causal.